Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
045	METALLURGICAL AND MATERIALS ENGINEERS	20
055	ELECTRICAL AND ELECTRONIC ENGINEERS	488
056	INDUSTRIAL ENGINEERS	871
057	MECHANICAL ENGINEERS	215	19
069	PHYSICISTS AND ASTRONOMERS	688	135
073	CHEMISTS, EXCEPT BIOCHEMISTS	4,470	995
095	REGISTERED NURSES	684	670
185	DESIGNERS	25
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	51	22
207	LICENSED PRACTICAL NURSES	28	28
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	2,439	486
215	MECHANICAL ENGINEERING TECHNICIANS	58
216	ENGINEERING TECHNICIANS, N.E.C.	3,745	1,245
223	BIOLOGICAL TECHNICIANS	862	300
224	CHEMICAL TECHNICIANS	944	66
225	SCIENCE TECHNICIANS, N.E.C.	7
235	TECHNICIANS, N.E.C.	2,552	1,052
446	HEALTH AIDES, EXCEPT NURSING	78	52
447	NURSING AIDES, ORDERLIES, AND ATTENDANTS	265	154
453	JANITORS AND CLEANERS	2,858	108
515	AIRCRAFT MECHANICS, EXC. ENGINE	74
516	HEAVY EQUIPMENT MECHANICS	386
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	20
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	86
544	MILLWRIGHTS	778	3
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	287
633	SUPERVISORS, PRODUCTION OCCUPATIONS	191	52
634	TOOL AND DIE MAKERS	1,722	13
636	PRECISION ASSEMBLERS, METAL	484	14
637	MACHINISTS	1,149	136
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	113
678	DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS	948	316
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	26	7
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	167
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	986	73
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	29	6
723	METAL PLATING MACHINE OPERATORS	1,166	70
724	HEAT TREATING EQUIPMENT OPERATORS	236
735	PHOTOENGRAVERS AND LITHOGRAPHERS	1,190	335
743	TEXTILE CUTTING MACHINE OPERATORS	16
754	PACKAGING AND FILLING MACHINE OPERATORS	2,404	486
756	MIXING AND BLENDING MACHINE OPERATORS	6
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	622	316
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	86
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	3,114	1,002
769	SLICING AND CUTTING MACHINE OPERATORS	1,063
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,847	1,012
779	MACHINE OPERATORS, NOT SPECIFIED	35	28
783	WELDERS AND CUTTERS	14,616	128
785	ASSEMBLERS	4,048	880
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	772	12
797	PRODUCTION TESTERS	14
804	TRUCK DRIVERS, HEAVY	5,212
849	CRANE AND TOWER OPERATORS	58
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	113
878	MACHINE FEEDERS AND OFFBEARERS	243	243
TOTAL		66,657	10,463

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.